Epidemiological evidence relating environmental smoke to COPD in lifelong non-smokers: a systematic review
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DOI: 10.12688/f1000research.13887.3
Abstract: Background: Some evidence suggests environmental tobacco smoke (ETS) might cause chronic obstructive pulmonary disease (COPD). We reviewed available epidemiological data in never smokers. Methods: We identified epidemiological studies providing estimates of relative risk (RR) with… read more here.
Keywords: epidemiological evidence; index; study; evidence ... See more keywords